Squares of elements in Pascal triangle (by row) that are not 1.

Terms

a(0) =4a(1) =9a(2) =9a(3) =16a(4) =36a(5) =16a(6) =25a(7) =100a(8) =100a(9) =25a(10) =36a(11) =225a(12) =400a(13) =225a(14) =36a(15) =49a(16) =441a(17) =1225a(18) =1225a(19) =441a(20) =49a(21) =64a(22) =784a(23) =3136a(24) =4900a(25) =3136a(26) =784a(27) =64a(28) =81a(29) =1296